EP2439725A3 - Method and apparatus for supplying power for display apparatus - Google Patents

Method and apparatus for supplying power for display apparatus Download PDF

Info

Publication number
EP2439725A3
EP2439725A3 EP11178176.1A EP11178176A EP2439725A3 EP 2439725 A3 EP2439725 A3 EP 2439725A3 EP 11178176 A EP11178176 A EP 11178176A EP 2439725 A3 EP2439725 A3 EP 2439725A3
Authority
EP
European Patent Office
Prior art keywords
power
unit
supplying power
display apparatus
supplying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11178176.1A
Other languages
German (de)
French (fr)
Other versions
EP2439725A2 (en
Inventor
Sung-Un Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Display Co Ltd
Original Assignee
Samsung Display Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Display Co Ltd filed Critical Samsung Display Co Ltd
Publication of EP2439725A2 publication Critical patent/EP2439725A2/en
Publication of EP2439725A3 publication Critical patent/EP2439725A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/10—Parallel operation of dc sources
    • H02J1/108—Parallel operation of dc sources using diodes blocking reverse current flow
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G09G2300/0866—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes by means of changes in the pixel supply voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of El Displays (AREA)

Abstract

An apparatus for supplying a power voltage to a pixel unit of a display apparatus includes a first power supplying unit for applying the power voltage to the pixel unit during a normal mode, a second power supplying unit for applying the power voltage to the pixel unit during a low power display mode, and a leakage current blocking unit for blocking a leakage current path from the second power supplying unit to the first power supplying unit during the low power display mode.
EP11178176.1A 2010-08-20 2011-08-19 Method and apparatus for supplying power for display apparatus Withdrawn EP2439725A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100080884A KR101718068B1 (en) 2010-08-20 2010-08-20 An apparatus and a method for supplying power for a display apparatus

Publications (2)

Publication Number Publication Date
EP2439725A2 EP2439725A2 (en) 2012-04-11
EP2439725A3 true EP2439725A3 (en) 2013-05-01

Family

ID=44582425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11178176.1A Withdrawn EP2439725A3 (en) 2010-08-20 2011-08-19 Method and apparatus for supplying power for display apparatus

Country Status (5)

Country Link
US (1) US8605074B2 (en)
EP (1) EP2439725A3 (en)
KR (1) KR101718068B1 (en)
CN (1) CN102426820B (en)
TW (1) TWI567711B (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101323390B1 (en) * 2010-09-20 2013-10-29 엘지디스플레이 주식회사 Organic light emitting diode display device and low power driving method thereof
TWI486755B (en) * 2012-06-22 2015-06-01 Askey Computer Corp Power supply mode switching circuit and method
KR101962781B1 (en) * 2012-07-12 2019-07-31 삼성전자주식회사 Display driving circuit and electronic device comprising the same
US8933866B2 (en) 2012-08-23 2015-01-13 Blackberry Limited Active matrix pixel brightness control
EP2701141A1 (en) * 2012-08-23 2014-02-26 BlackBerry Limited Active matrix pixel brightness control
CN103236247B (en) * 2013-05-07 2015-03-25 深圳市华星光电技术有限公司 Driving device and driving method of liquid crystal display and corresponding liquid crystal display
KR102071004B1 (en) * 2013-09-03 2020-01-30 삼성디스플레이 주식회사 Dc-dc converter and organic light emitting display including the same
KR102135924B1 (en) * 2013-12-30 2020-07-20 엘지디스플레이 주식회사 Driving circuit for display device and method for driving the same
CN103915071B (en) * 2014-03-13 2017-02-15 京东方科技集团股份有限公司 Display panel power supply voltage regulating device and method and display device
US9898060B2 (en) * 2014-09-16 2018-02-20 Integrated Device Technology, Inc. System and method for wireless power transfer using automatic power supply selection
KR102168671B1 (en) * 2014-09-24 2020-10-22 삼성디스플레이 주식회사 Dual display device and electronic device having the same
KR102232249B1 (en) * 2014-10-31 2021-03-29 삼성디스플레이 주식회사 Display device
KR102264710B1 (en) * 2014-11-12 2021-06-16 삼성전자주식회사 Display driving method, display driver integrated circuit, and an electronic device comprising thoseof
KR102306076B1 (en) * 2014-12-18 2021-09-29 삼성디스플레이 주식회사 Power supply device and display device having the same
KR102276185B1 (en) * 2014-12-29 2021-07-13 엘지디스플레이 주식회사 Data Driver and Display Device using the same
KR102288524B1 (en) 2015-03-19 2021-08-12 삼성디스플레이 주식회사 Display device
KR102345396B1 (en) * 2015-04-03 2021-12-31 삼성디스플레이 주식회사 Power management driver and display device having the same
CN104882111B (en) * 2015-06-24 2017-03-29 京东方科技集团股份有限公司 A kind of display driver circuit and its driving method, display device
DE102015219490A1 (en) * 2015-10-08 2017-04-13 BSH Hausgeräte GmbH Matrix circuit for a display device of a household appliance, display device and household appliance
CN106920511A (en) * 2015-12-28 2017-07-04 上海和辉光电有限公司 A kind of electric power system and terminal device for reducing holding state power consumption
KR102458908B1 (en) * 2015-12-31 2022-10-25 엘지디스플레이 주식회사 Organic light emitting display device
KR102458374B1 (en) * 2016-02-23 2022-10-26 삼성디스플레이 주식회사 Display device and electronic device having the same
KR102596606B1 (en) * 2016-08-31 2023-11-01 엘지디스플레이 주식회사 Display and driving method for the same
KR102564603B1 (en) 2016-12-20 2023-08-08 엘지디스플레이 주식회사 Light emitting display device and driving method for the same
CN109493796B (en) * 2017-09-12 2021-04-09 上海和辉光电股份有限公司 Display device and screen power consumption control method thereof
CN109509432A (en) * 2017-09-14 2019-03-22 上海和辉光电有限公司 Active matrix organic light-emitting diode display device and its driving method
KR102597871B1 (en) * 2017-12-29 2023-11-02 엘지디스플레이 주식회사 Power supplying apparatus and display apparatus comprising the same
JP6774447B2 (en) * 2018-02-07 2020-10-21 双葉電子工業株式会社 Touch panel drive device, touch panel device, drive voltage generation method
JP7143600B2 (en) * 2018-03-12 2022-09-29 オムロン株式会社 Control device
CN108806585B (en) * 2018-08-30 2021-11-05 合肥京东方光电科技有限公司 Driving circuit, driving method and display device
US20220399380A1 (en) * 2019-11-29 2022-12-15 Kyocera Corporation Display device
KR20210103043A (en) * 2020-02-12 2021-08-23 삼성디스플레이 주식회사 Power voltage generator, method of controlling the same and display apparatus having the same
KR102662910B1 (en) * 2020-04-01 2024-05-08 삼성디스플레이 주식회사 Power management circuit, method of generating a pixel power supplly voltage, and display device
KR20210133359A (en) * 2020-04-28 2021-11-08 삼성디스플레이 주식회사 Power voltage generator, display apparatus including the same, method of generating power voltage using the same
CN113436563B (en) * 2021-06-03 2022-05-13 荣耀终端有限公司 Power supply circuit, driving device and display device
KR102507174B1 (en) * 2022-10-18 2023-03-08 주식회사 티원엘에스 A control apparatus and method of a monitor for reducing the power consumption of a monitor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954081A2 (en) * 1998-04-29 1999-11-03 Samsung Electronics Co., Ltd. Improved efficiency in power switching circuits
US20040027099A1 (en) * 2000-09-28 2004-02-12 Masashi Fujii Power supply
US20080111811A1 (en) * 2006-11-14 2008-05-15 Sung-Cheon Park Organic electro-luminescence display and driving method thereof
EP2056282A2 (en) * 2007-10-29 2009-05-06 Samsung Mobile Display Co., Ltd. Organic light emitting display and power supply method thereof
US20090224603A1 (en) * 2008-03-07 2009-09-10 Harry Leonard Perper Energy conserving (stand-by mode) power saving design for battery chargers and power supplies

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100413686B1 (en) 2001-07-14 2003-12-31 삼성전자주식회사 Apparatus for saving power in monitor and method thereof
TWI309831B (en) * 2002-09-25 2009-05-11 Semiconductor Energy Lab Clocked inverter, nand, nor and shift register
KR100474274B1 (en) 2002-09-30 2005-03-10 엘지전자 주식회사 Low power driving apparatus for display device
US7355779B2 (en) * 2005-09-02 2008-04-08 Idc, Llc Method and system for driving MEMS display elements
KR20090074367A (en) 2008-01-02 2009-07-07 엘지전자 주식회사 Apparatus for power supply of flat display
KR20100010134A (en) 2008-07-22 2010-02-01 엘지전자 주식회사 Low power circuit of using standby power in lcd

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954081A2 (en) * 1998-04-29 1999-11-03 Samsung Electronics Co., Ltd. Improved efficiency in power switching circuits
US20040027099A1 (en) * 2000-09-28 2004-02-12 Masashi Fujii Power supply
US20080111811A1 (en) * 2006-11-14 2008-05-15 Sung-Cheon Park Organic electro-luminescence display and driving method thereof
EP2056282A2 (en) * 2007-10-29 2009-05-06 Samsung Mobile Display Co., Ltd. Organic light emitting display and power supply method thereof
US20090224603A1 (en) * 2008-03-07 2009-09-10 Harry Leonard Perper Energy conserving (stand-by mode) power saving design for battery chargers and power supplies

Also Published As

Publication number Publication date
CN102426820A (en) 2012-04-25
TW201222513A (en) 2012-06-01
KR101718068B1 (en) 2017-03-21
CN102426820B (en) 2016-04-20
US8605074B2 (en) 2013-12-10
EP2439725A2 (en) 2012-04-11
KR20120018256A (en) 2012-03-02
US20120044231A1 (en) 2012-02-23
TWI567711B (en) 2017-01-21

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